20156233265102 has 16 divisors (see below), whose sum is σ = 32983009730352. Its totient is φ = 9161901275520.

The previous prime is 20156233265101. The next prime is 20156233265149.

20156233265102 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×20156233265102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20156233265101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10444598 + ... + 12223014.

It is an arithmetic number, because the mean of its divisors is an integer number (2061438108147).

Almost surely, 2^{20156233265102} is an apocalyptic number.

20156233265102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20156233265102 is a deficient number, since it is larger than the sum of its proper divisors (12826776465250).

20156233265102 is a wasteful number, since it uses less digits than its factorization.

20156233265102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293603.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 20156233265102 in words is "twenty trillion, one hundred fifty-six billion, two hundred thirty-three million, two hundred sixty-five thousand, one hundred two".